基于DPCA的多通道机载SAR动目标检测和参数估计方法  

A novel method of moving target detection and parameters estimation for multichannel airborne SAR based on DPCA

作　　者：李世峰 Li Shifeng(Changle Country Bulk Cement Technology Promotion Service Center,Changle 262400,China)

机构地区：[1]昌乐县散装水泥技术推广服务中心,山东昌乐262400

出　　处：《山西建筑》2021年第3期162-163,共2页Shanxi Architecture

摘　　要：在分析多通道机载SAR/GMTI模式回波的基础上,结合移位相位中心天线(Displaced Phase Center Antenna,DPCA)技术,提出一种适用于多通道机载SAR/GMTI模式的杂波抑制和参数估计算法。该方法将传统的DPCA方法扩展到三个或者更多个通道,从而获得更好的性能,不仅能够有效地实现杂波抑制,还能够较准确的估计出动目标的运动参数。仿真数据证明了该方法的有效性。This paper puts forward a new method of clutter suppression and moving target parameters estimation used for multichannel airborne SAR/GMTI system based on the signal model of multichannel airborne SAR/GMTI system.This method extends the traditional DPCA to three or more receive channels,hence has a better performance.This method can not only realize clutter suppression effectively,but also estimate moving target parameters precisely.The effectiveness of the presented method is demonstrated by simulated data.

关 键 词：移位相位中心天线(DPCA) 多通道SAR系统 动目标检测 参数估计 

分 类 号：TN953[电子电信—信号与信息处理]